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(No Model.) 3 Sheets-Sheet 1.

W R. BAKER.

' MOWER.

No. 361,607. Patented Apr. 19,1887.

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(No Model.) I 3 sheets-s eet 2.

W. R. BAKER.

MOWER. No. 361,607. PatentedApr. 19, 1887.

INVENTOR WiZziam, R.Bafi'e?'.'

3 Sheets-Sheet 3.

(No Model.) I

W. R. BAKER.

MOWER.

Patented Apr. 19, 1887.

INVENTOR William R.Ba7l'er. By hi fltiorneys To all whom it may concern:

UNITEI) STATES PATENT OFFICE.

\VILLIAM It. BAKER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE MCCORMICKHARVESTING MACHINE COMPANY, OF SAME PLACE.

MOWER.

' SPECIFICATION forming part of Letters Patent No, 361,607, dated April19, 1887.

Application filed March 12, 1885.

Be it known that I, WILLIAM R. BAKER, a

citizen of the United States, residing at Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin Mowers, of which the following is a specification.

My invention relates to that class of mowers known as two-wheelhinge-bar front-cut 1nachines in which there is a floating and rockingfinger-bar connected to the main frame by a coupling-frame andthrust-bar; and it consists in hinging the couplingarm and thethrust-bar to the main frame between the carrying-wheels upon diagonalpivots arranged upon the same axis with the rear pivot in closeproximity to the axle; in combining with the coupling-arm andthrust-bar, both hinged upon a common diagonal axis, and with thefinger-bar a tilting lever having its weightarm substantially in linewith said axis, in order that the rising and falling of the fingerbarmay not essentially affect the adjustment of the cutter-bar; in a hollowcoupling-frame forked at its end to embrace the inner shoe of thefinger-bar and having a recurved head on the rear arm of the fork and avertical shielded gnideway in the front arm; in combining with theforked coupling-arm a thrust-bar pivoted to the main frame upon the samediagonal hinge with said coupling-frame and bolted rigidly to a seatupon the rear arm of the fork; in combining with a Wing or spur on thefront arm of the forked coupling a lead-wheel receiving the point ofsaid wing within its reenteringly-curved rim, to act as a rolling shoeor inside divider, and in various other details of structure,hereinafter described and claimed.

In the drawings, Figure 1 is a top plan view of a mower embodying myinvention, the tongue and finger-bar being partly broken away. Fig. 2 isan elevation thereof from the divider side. Fig 2 is a detail showingthe fore part of the coupling-fork and inner shoe and. the connectionbetween the two. Fig. 3 is an enlarged detail in section of theleadwheel and the connection between it and the coupling-arm; Figs. 4and 5, enlarged details showing the arrangement of the inner'shoe SerialNo. 158,625. (No model.)

and rear arm of the forked coupling, and the lever and tilting chainwith its bell-crank.

A represents the main or driving wheels of the machine; 13, the mainframe with incased gearing; C, the drivers seat; D, the draft tongue,and E the cutter crank-shaft, the

arrangement of these being such as usual in mowers now in the market,and not requiring further description.

To the bracket 6, which shields the connection between the pitman andwrist-pin, and in front thereof, 1 hinge on a diagonal pivotpin, f,directed inward toward the axle and inner wheel,acoupling-arm, F, whichmay be of theusual form, but which, for lightness and increasedstrength, Iprefer to make as shown that is, it is cast hollow, in onepiece of gradually-enlarging diameter toward the inner shoe, and nearits free end is forked or provided with an offsetting arm, F, whichextends rearwardly at right angles to the main arm ,for the purpose ofsupporting various parts, ashereinafter explained, until it reaches andpasses slightly beyond the heel of the inner shoe, when it curves uponitself and terminates in a spherical head or ball, f, to form one memberof a universal coupling with the inner shoe. Directly in front of thisball the extended main arm has a vertical recess or way, f formedin saidarm. and in a downward offset from the same, and closed or shielded attop and'bottom, as well as at the sides.

A thrust-bar, G, is rigidly bolted to a seat formed upon the rear end ofthe arm F, and is hinged to the main frame just beneath the axle by adiagonal pivot, g, inline with or upon the same axis as the pin, bywhich the coupling-arm is hinged, the purpose of these diag onal pivotsbeing to keep the finger-bar in line, notwithstanding its flexions, andalso to more effectually resist the leverage of the finger-bar.

In front of the coupling-arm and integral therewith,or rigidly affixedthereto, is a wing, g, flaring outwardly and forwardly and termimatingin a point or spur. A vertical slotted elongated boss, 9, upon this wingreceives a bolt, securing thereto a tubular stub-axle, g supporting thelead-wheel H, which is thus made to carry the weight of the coupling-armand parts which it supports, and which may be adjusted up and down alongthe slotted boss to change the height of the inner end of-thefinger-bar. This lead-wheel is hollow, and is open on one side, except,as shown in Fig. 3, for a re-entrant rim, h,which forms an angularchamber, h,within the tread. ,Into this chamber the point or spur of thewing-piece projects, coming close to the edge of the rim and beingentirely shielded thereby, so that the wheel and the wing-piece togetherform in effect both an inner divider and a rolling-shoe.

The inner shoe, I, has at its rear or at its wheel end a sphericalsocket, i, for the reception of the ball in the rear fork of thecoupling-arm, and on its toe an anti-friction roller, i,which isreceived into and fits snugly within the shielded recess or Way in thefront fork.

Behind this it is curved to substantially follow the. curved outline ofthe tread of the lead-wheel, and merges into the finger-bar Kpractically on a line with the inner face of said wheel.

To the inner or divider side of the rear fork of the couplingarm ispivoted a bell-crank lever, L, one arm, l,of which connects by ashortchain, 1, with the front part of the shoe, so as to lift it within itsguideway, thus tilting the finger-bar,and yet permitting it to befurther lifted by any sinuosity of the ground or by any obstruction. Theother arm, 1*, of the bellcrank is connected by a link, Z, with a lever,M, pivoted at the rear of of the axle and having the usual segment-rack,m, and detent. The location of this lever is such as to bring its loweror Weight arm substantially in line with the diagonal axis of thecoupling -arm and thrust-bar, so that the tilting adjustment of thefinger-bar will be practically undisturbed by flexions or movements ofthe floating or coupling frame formed by the coupling-arm andthrust-bar. On the other side of the rear forkand beneath the thrust-baris pivoted a gag-lever, N, the lower arm of which comes against alateral spur, n, from the heel of the inner shoe, and the other arm hasa socket, n, in which the thrust-bar'is received, and is connected by achain, 'nflwith the liftingsegment 0 and actuating-lever O on the mainframe, so that whenever this actuating-lever is moved to take in thechain the gag-lever will first act upon the finger-bar to lift its outerend, and will then, if the-movement of the lever is continued, catchupon the thrust-bar and lift the finger-bar and floating frame bodily.

In order to lighten the draft or pressure of the floating frame upon theground, a stirrup, P, is hinged to the draft-tongue, and to this isattached the clip for the double-tree. A link, 19, connects this stirrupwith the thrustbar about opposite the tread of the carryingwheel, sothat as the stirrup is rocked by the draft of the team the link willdraw upon the thrust-bar and tend to raise it and the parts to which itis rigidly attached, or which, by

means of the gag-lever, are so locked to the others as to be compelledto follow their movements.

I 'am aware that in Letters Patent granted.

to J. B. Kershaw, June 15, 1869, No. 91,347, a

peculiarly liable to catch and collect the fine gritty dust that isstirred up from the stalks and stubble in the passage of the machine,thus causing the joint to clog and grind, Wearing it out rapidly. In mymachine, on the contrary, the socket, being upon the heel of the shoe,has its mouth directed, to the rear, and thus serves the twofoldfunction of member of the joint and shield therefor.

I clain1- Y 1. The combination, substantially as hereinbefore set forth,in a two-wheel hinge-bar front-out mower, of a main frame and acoupling-frame hinged thereto between the carrying-wheels by diagonalpivots arranged'upon the same axis, and the rear pivot being adjacent toand beneath the axle.

2. The combination, substantially as hereinbefore set forth, in atwo-wheel hinge-bar front-cut mower, of a main frame, a couplingarmhinged thereto by a diagonal pivot, and a thrust-bar hinged also to themain frame close to the axle by a diagonal pivot on the same axis as thepivot of the coupling-arm, both pivots being within the carrying-wheels.

3. The combination, substantially as hereinbefore set forth, in atwo-wheel hinge-bar front-cut mower, of the main frame, the forkedcoupling-arm hinged thereto by a diagonal pivot, the tilting or rockingfinger-bar carried by said coupling-arm, and the thrust-bar rigidlysecured to the rear fork of the couplingarm and hinged to the main frameby a diagonal pivot in continuation of the other.

4.. The combination, substantially as hereinbefore set forth, of thehollow forked coupling-arm having a spherical forwardly-projecting headon the rear fork and a vertical shielded recess in the front fork, andthe inner shoe having a spherical socket engaging with said head and ananti friction roller on its toe entering in and playing within saidrecess.

5. The combination, substantially as hereinbefore set forth, of thewing-piece and the lead-wheel having a re-entering rim which embracesand shields the point of saidwingpiece.

6. The combination, substantially as hereinbefore set forth, of thecoupling-arm, its wing-piece, and the lead-wheel turning on a stub-axlefrom said wing-piece and having a re-entering rim which embraces andshields the point thereof.

7. The combination, substantially as hereinbefore set forth, of theforked coupling-arm,

IIO

its diagonal hinge, the thrust-bar and its diagonal hinge, and thetilting-lever having its link-arm arranged substantially in line withthe axis of said diagonal hinges.

8. The combination, substantially as hereinbefore set forth, of theforked coupling-arm hinged to the main frame by a diagonal pivotpin, theinner shoe hinged to the rear fork of said couplingarm and playing, asto its toe,

in a vertical recess in the front fork, the

thrust-bar, also hinged to the main frame by a diagonal pivot-pin inline with the first, the bell-crank pivoted to the rear fork andconnected by chain-links with the front of the shoe, the tilting leverfrom the main frame having its link-arm substantially inline with thediagonal pivots, and the link connecting the bell-crank with saidlink-arm.

9. The combination, substantially as here; inbefore set forth, of theforked ooupling-arm, the inner shoe connected with the rear fork by ahingejoint and controlled at its toe by a vertical guide or recess inthe front fork, the thrust-bar bolted to said rear fork, the gag leverpivoted to the rear fork and having a socket for the reception of thethrust-bar, the lateral spur from the heel of the shoe with which thelower arm of the gag-lever engages, and the lever upon the main frameconnected with the upper arm of the gag-lever.

10. The combination, substantially as hereinbefore set forth, of theforked coupling-arm, its forwardlyrprojecting wing-piece, the lead-Wheel supported on a stub-axle from said wing-piece and embracing andshielding its point, and the inner shoe hinged to the rear fork by auniversal joint and having its toe restrained and guided by the verticalrecess in the front fork and shielded on its inner side by saidlead-wheel.

l1. The hollow forked coupling-frame constructed, substantially asdescribed, of a single casting with rearWa-rdly-extending armterminating in a recurved'spherical head, and with vertical shieldedgnideway in the front arm.

12. The hollow forked coupling? frame formed as a single casting, havingthe rear member of the fork arranged at right angles to the other andinwardly curved at its end and terminating in a spherical head, and theforward member provided with a vertical guideway for the toe of the shoeand with a forwardly-extending Wing-piece, substantially as described.

WV] LLlAlVI R. BAKER.

Witnesses:

PAUL ARNOLD, S. G. A. Emma.

